40403099 has 4 divisors (see below), whose sum is σ = 44076120. Its totient is φ = 36730080.

The previous prime is 40403059. The next prime is 40403113. The reversal of 40403099 is 99030404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40403099 - 2²⁴ = 23625883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40403009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1836494 + ... + 1836515.

It is an arithmetic number, because the mean of its divisors is an integer number (11019030).

Almost surely, 2^40403099 is an apocalyptic number.

40403099 is a deficient number, since it is larger than the sum of its proper divisors (3673021).

40403099 is a wasteful number, since it uses less digits than its factorization.

40403099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673020.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 40403099 is about 6356.3432097394. The cubic root of 40403099 is about 343.1401677320.

The spelling of 40403099 in words is "forty million, four hundred three thousand, ninety-nine".